a8st 97st07 87st0 77st 67st07
lhst07 khst0 jhst ihst07 hhst0
wqrt0 vqrt uqrt07 tqrt0 sqrt
7zqt 6zqt07 5zqt0 4zqt 3zqt07
i9pt07 h9pt0 g9pt f9pt07 e9pt0